<?php
	function GetCartId()
	{
		// This function will generate an encrypted string and
		// will set it as a cookie using set_cookie. This will
		// also be used as the cookieId field in the cart table
		
		if(isset($_COOKIE["cartId"]))
		{
			return $_COOKIE["cartId"];
		}
		else
		{
			// There is no cookie set. We will set the cookie
			// and return the value of the users session ID
			
			session_start();
			setcookie("cartId", session_id(), time() + ((3600 * 24) * 30));
			return session_id();
		}
	}
?>